Telephone-support



(Nb Model.)

S. BERGMANN.

TELEPHONE SUPPORT.

Patented NOV.-13, 1888.

her. Washinghm, o. c.

UNITED STATES FATENT @FFICE.

SIGMUND BERGMANN, OF NEW YORK, N. Y., ASSIGNOR TO THE AMERICAN BELLTELEPHONE COMPANY, OF MASSACHUSETTS.

TELEPHONE-SUPPORT.

SPECIFICATION forming part of Letters Patent No. 392,843, dated November13, 1888.

Application filed September 25,1885. Serial No. 178,166.

.To all whom it may concerm' Be it known that I, SIGMUND BERGMANN, ofNew York city, in the county and State of New York, have invented acertain new and useful Improvement in Telephone Supports,

of which the following is a specification.

My invention relates more especially to that class of telephones havinga body of oil or equivalent mobile material for controlling the actionof the electrodes, such as described in my application No. 113,502.

The object I have in view is to produce such a construction of this andsimilar instruments and the support for the same that the telephone I 5may be adjusted to the height of the user, but will always retain alevel horizontal position, so as not to affect the adjustment. This Iaccomplish by hanging the telephone on horizontal pivots, well above thecenter of gravity,

on an arm pivoted at its inner end, the telephone-case being weighted atthe bottom, or a weight being attached thereto, or being other- (Nomodel.)

terial, and to maintain the adjustment it is necessary that theinstrument should be kept in a horizontal position. At the same time itis desirable that the instrument should be capable of verticaladjustment to bring it to the proper elevation for different users. Toaccomplish this I use a turning-arm, B, pivoted at its inner end, at b,to a suitable support, and having a friction-washer, 0, or othersuitable device for holding the arm at any point of adjustment.

The outer endofthe arm is forked, the ends of the forks d e carryingbetween them on pivots f g the telephone A. These pivots are pointedscrews setting into countersinksinlugs on the case of the telephoneabove the center 0 SIGMUN D BERGMANN.

Witnesses:

J NO. F. GEIDEL, L. 0. T. WADE.

